Road tamfer



1,654,014 1.927 w. s. PROCTOR ET AL ROAD TAMPER Filed July2. 1926 sszwets-shee Dec. 27, 1927.

W. G. PROCTOR ET AL ROAD TAMPER Filed JulyZ, 1926 3 Sheets-Sheet 2 Dec.27, 1927.

W. G. PROCTOR ET AL ROAD TAMPER Filed Julyz. 1926 s Sheets-Sheet 3 WGCPr0 1-: .mdz

r & auna lad Patented Dec. 27, 1927.

UNITED sures v 1,654,014 PATENT OFFICE.

WARREN G. YROC'IOB AND FBAN K B. .DUDLEY, F IITCHBURG, MASSACHUSETTS.

ROAD TAMPEB.

Applloation'flled July 2, 1926. Serial m. 120,1".

This invention relates to road machines, and more particularly to amachine espe cially designed for loosening the road surface, redressing,and finally leveling and tampin the surface.

Anot er object of the invention is to provide means for adjusting thetampers, with respect to the ground surface over which the machine ismoving, to compensate for high and low places in the road surface and toinsure an even surface.

With the foregoing and other objects in View which will appear as thedescription proceeds, the invention resides in the combination andarrangement of parts and in the .details of construction hereinafterdescribed and claimed, it being understood that changes in the preciseembodiment of the invention herein disclosed, may be made within thescope of what is claimed, without departing from the spirit of theinvention.

Referring to the drawings:

Figure 1 is a side elevational view illu trating a road machineconstructed in accordance with the invention.

Figure 2 is a vertical sectional view through the tampers and tamperhousing.

Figure 3 is a side elevational view of the tampers and tamper housing,one of the tampers being shown in section.

Figure 4 is a sectional view taken on line of Figure 2.

Figure 5 is an elevational view of the adjusting roller.

Figure 6 is a planview of the machine.

Figure 7 is a sectionalview taken on line 77 of Figure 1.

Referring to the drawings in. detail, the device includes a frameembodying side rails 5 which are connected at their ends by means of therails 6, that hold the side rails in proper spaced relation with eachother.

The rear of the frame is supported by means of the wheels 7 mounted onthe axle 8 that operates in the bearings 9 secured to the under edges ofthe side rails 5.

The front ofthe frame is supported by the wheels 10 that may be guidedby means of the wheel 11, and other-suitable mechanism.

not shown so thatthe machine may be properly guided over a road surface.Adjacent to the operators seat which is indicated at 12 is a lever 13that has connection with the link 14 which in turn connects with the arm15 of the scraper 16, the scraper being pivotally supported by means ofthe brackets 17 secured to the opposite sides of the frame.

Depending from the underside of the frame are brackets 18 to which thedrag 19 is pivotally connected, the drag being provided with pockets 20or openings through which material may pass. The reference character 21indicates a gravel bin which is disposed directly over the drag 19 forsupplying gravel or other suitable surface dress mg material to the drag19.

This bin is provided with a hop or bottom 22, there being provided an ajustable closure 23 which when moved to its open position, provideschutes over which the ma terial may pass as it is being delivered to thedrag. From the foregoing it will he obvious that due to thisconstruction, the

device may be adapted for spreading mate;-

rial of various grades, since the o suing through which material passesfrom t e bin may be regulated. V The tampers forming an,importantfeature of the invention are indicated by the reference character 24,and as shown, these tampers are encased in the housing 25 adapted tomove vertically between the side rails 5. The housing is held in anupright position bymeans of arms 26 that have pivotal connection withthe upstanding arms 27, the forward ends of the arms 26 havingconnection with the shaft 28 that carries the came for operating thetampers in a manner to be hereinafter more fully described.

As clearly shown by Figures 2 and 3 of the drawings, the tampers embodyheads indicated at 29, each head being provided with a movable weightedsection 30, held in spaced relation with the head 31 of the connectingrod 32 associated therewith by means of coiled springs 33 to the endthat the jar directed to the tampers incident to the tampers engagingthe road surface will be absorbed, relieving the machinery of excessivestrain and undue wear.

Eccentrics 34 are mounted on the shaft 28 to which the collars 35 areconnected, to the end that as the shaft 28 is rotated, the connectingrods 32 will be moved longitudinally of the tamper housing to tamp theground surface over which the device is moving.

Mounted at the rear of the frame ofthe machine, is a roller 36 thatoperates on the shaft 37 mounted in the bearings formed in the ends ofthe arms 38. An adjusting screw indicated at 39 has connection with thearms with link 43, at 44,

:38 andis controlled by means ofthe hand wheel 40 to the end that byrotating thehand wheel, the screw and roller may be adjusted vertically.by v At each end of the roller 36 is a link 41 link 43 and is supportedby the link47, the

link 46 being pivotally connected at 48.with the link 49 mounted at thelower end of the link 50, the forward end of the link 49 having-pivotalconnection with the tamper connectlon at 51. I

From the foregoing it will be obvious that when the roller 36 isadjusted to move the same upwardly. the tamper housingwill movedupwardly elevating the tampers.

to adjust them for an elevation, or irregularities in the road surface,as when the machine is moving over a hollow portion in the road surface.i

Upon movement of the roller in the opposite direction, it will beobvious that the tamper housing and tampers, will also be moved in theopposite'direction compensating for a depression in the road surface ina manner to insure the leveling of the road surface.

Power may be supplied to the shaft 28,

by means of the belt 62 operating over the motor 56.

pulleys 53 and 54, the latter pulley being secured to the outer end ofthe shaft 55 of the In the use of the machine, any suitable power may beemployed for propelling the machine and when the machine has beenroperly positioned, the scraper is adjusted y .the operator to cause thesurface of the road to be thoroughly scraped and loosened. a Materialsuch as gravelor similar top dressing material is released from the bin21,

'otally connected links,

ating the tampers, links nee-1,014

( where it falls onto the drag 19 and is levhard road surface.

e claim 1. In a road machine, a wheel sup orted frame, a tamper housingsupported y the frame, tampers mounted for vertical movement within thehousing, a plurality of pivmeans for supporting the links in spacedrelation with the frame, one of the links having connection with thetamper'housing, a vertically adjustable roller, one of the links havingconnection with the vertically adjustable roller, and said rolleradapted to adjust the tamper housing vertically.

In a road machine, a frame, a vertically adjustable tamper housing,tampers operating in the tamper housing, means for ope pivotallyconnected to the tamper housing at opposite sides thereof, linkspivotally connected with the first mentioned links, meansfor pivotallysupporting the links on the frame, and means-for operating the-links tomove the tamper housing vertically. I 3. In a road machine, a tamperhousing mounted for vertical movement on the frame, tampers in thetamper housing, a plurality of pivotally connected links mounted on theframe, certain links being connected with the housing, means foroperating the links to move the tamper housing in a true vertical plane,and means for operating the tampers. y

In testimony that we claim" the foregoing as our own, we have heretoaffixed our signatures.

WARREN G. PROCTOR. FRANK R. DUDLEY.

to move to operate the links

